MARIETTA — A proposal to build the first apartments within the Cobb Galleria has moved forward after the county’s planning commission gave its blessing Tuesday to plans for a 283-unit complex.

Cumberland-based real estate developers Childress Klein is asking the county to rezone 4 acres of general commercial land at 800 Galleria Parkway — a parcel within the northwestern block of Cobb Parkway and Akers Mill Road — for an apartment building of four stories and basement.